Machine foe



UNITED sTATEs PATENT oEEIoE,

JOSEPH ADAMS, OF FAIRI-IAVEN, VERMONT.

MACHINE FOR GRIMPING LEATHER FOR BOOTS,` &o.

Specification of Letters Patent No. 656, dated March 26, 1838; AntedatedSeptember 26, 1837. i

To all whom it may concern:

Be it known that I, JOSEPH ADAMs, of Fairhaven, in the4 county ofRutland and State of Vermont, have invented a new and useful Machine forCrimp-ing Boot-Fronts; and I do hereby declare the following is a fulland exact description.

The nature of my invention consists in the construction and combinationVof jaws and carriage for a boot crimp to rest on with a double visecastiron wheel and pinions and cranks, and rack so attached as to workthe whole of the machine so as to produce the intended effect, ofcrimping boot fronts.

To enable others to make and use my invention I will p-roceed todescribe its construction and operation.

I construct the frame of my machine in the following manner: Two postsfour feet seven inches long and two inches and a half square (as shownby letter B in the drawing) and worked into two'sills, eighteen incheslong of the same dimensions of the posts (shown by letter K) andconnected by a girth twenty one Ainches long of the same dimension,about three inches from the top of the posts and (shown by letter A) andby another girth of the same dimenf sions (also shown by letter A) abouteighteen inches from the bottom of said posts, two wooden jaws teninches wide and twelve long (as shown by letter C) and framed into theupper girth near the center and pointed at the lower end to fit thecrimp, the point of said jaws to hang directly over the angle or curveof the crimp hereafter mentioned. VThese jaws are supported by twobraces of convenient size.` To prevent them from splitting an iron boltabout three quarters of an inch is passed through the jaws and bracesabout seven inches from the points of said jaws with a square flat headon the back side and sunk in to the brace to keep it from turning and ascrew on the other end, with a crank about six inches long,'and nut onthe end, to shut the jaws, which are set in the girth so as to make themslightly movable, so as they may open and shut, a straight spring ofsufficient strength is inserted between the jaws Vso as not to infringewith the bolt and action of the machine, for the purpose of openingthem, with cresases in the inside of the jaws, to force the leather onto the crimp, a carriage constructed of bed work (as shown by theletters M and N) and ,framed into a ced piece of the' same size of theposts l is made of vplank of the same thickness of the bed piece andtted to the crimp with genes 1s, thebed work at each end ofthe crimp andcenter, to receive the said crimp and keep it in its place. Two pairs ofreversed jaws indentedint-o the heelwworkjat right angles from the crimp(as shown bythe letters E) oflsimilarshape of the others with hookingcrimps on` the instep ,to eri--` tend the leather and shui; in the samemanner of the upper jaws, as shown by the `letters F on the-head of thebolts, and `small spiral springs inserted between the jaws just belowthe bolt Vto throw them open, with a small girth of wood at` the bottomof the jaws working at each end like a hinge to keep the lower end ofthe jaws from spreading so as to extend the top or mouth of the jaws toreceive the crimp and leather, i i

with a piece cut out of the bedwork for the `girth and bolt to work in,a cast ironrack is attached to the bed piece (as shown by letter Q)about an inch and a quarter Wide of sufficient thickness, with half inchcogs,

Vand passes4 down through the lower girth.

This rack is moved by a pinion wheel (as shown by letter P) of 3 inchesand a half spangler sunk into the lower girth so as to connect with therails, a shaft passes through the pinion and a wheel of about fifteeninches diameter (as shown by O) and one end of the Shaft resting on thegirth and the other on a standard (as shown by letter I) and mortisedinto a cross piece resting on the sills as shown by letter J and turnedby a crank twelve or fourteen inches long attached to the shaft thatpasses through a pinion two inches and a half di-V open. lAn iron slidesix inches long, halt .aneinch wide, anda quarter vthick passes througha bolt Yand staple that fastens it to the lower girth as shown by'letterL) and slides into a notch in the right of the shank of the Yvise aboutone inch from the bot-tom of the'shank to hold it fast. Two pairs ofVclamps (shown by U) attached to the upper sections of the bedwork andshut in the same manner as ythe jaws to fasten the top and toe of theboot front to prevent its sinking at'the instep and ankle in thin tightleather a small slide and spring` attached to the lower side of the bedpiece, A(or spring) to snap into the notches on the right side of thevise to hold it when the Vcorners of the boot is brought to their properplace.

f All of the machine must be made of some good durable hard wood, exceptthe castings, and all of the jaws may be faced with sheet brass orcopper to make them more durable but is not necessary except fordurability.

T0 make an operation with the above described machine, the leather mustbe thoroughly wet and doubled in the center and placed in the crimp.Then close the upper jaws with the crank attached for that purpose to asuitable distance to Areceive the leather and crimp. Then move thecarriage up with the crank attached to the pinion T so as to force theleather and crimp between the upper jaws. Then open the jaws and let thecarriage fall down and fasten the vise with the slide, attached for thatpurpose. Then lower the carriage so as to project the rim ahovethebedwork on each side of the crimp. Then place the corners Vclose themwith cranks on the end of the bolts marked f, and close the upper jawsas before, and force the leather and crimp up inbetween the upper jaws,which will force the reverse jaws back to their place and the leather isready to tackV 0n to the crimp and take out of the machine.V In case ofhard stubborn leather the corners of the boot front had better bebrought down bv degrees7 by drawing the corners of the/boot front one ortwo lnotches'atv a time. Then let the viseloose and drive the leatherand crimp up into the upper jaws to prevent wrinkles risingin the curveof the crimp,A

so continue the operation until the corners are brought to their properplane. Then proceed with the reversed jaws as above.

I claim "as my invention, and desire to Y secure by Letters Patent- Thereversed jaws E, E, constituted and operating substantially as` hereindescribed and I claim them also, in vtheir combination with the jaws C,C, as herein described.

JOSEPH ADAMS. Witnesses v ALoNsoN ALLENs JAMES M. CHASE.

